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dc.contributor.author
Solazzi, Santiago Gabriel
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dc.contributor.author
Rubino, Jorge German
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dc.contributor.author
Jougnot, Damien
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dc.contributor.author
Holliger, Klaus
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dc.date.available
2021-06-22T11:19:49Z
dc.date.issued
2020-02-04
dc.identifier.citation
Solazzi, Santiago Gabriel; Rubino, Jorge German; Jougnot, Damien; Holliger, Klaus; Dynamic permeability functions for partially saturated porous media; Oxford University Press; Geophysical Journal International; 221; 2; 4-2-2020; 1182-1189
dc.identifier.issn
0956-540X
dc.identifier.uri
http://hdl.handle.net/11336/134630
dc.description.abstract
While the frequency-dependence of permeability under fully saturated conditions has been studied for decades, the corresponding characteristics of partially saturated porous media remain unexplored. Notably, it is not clear whether the use of effective pore fluid approaches under such conditions is valid. To address this issue, we propose a method that allows us to obtain dynamic permeability functions for partially saturated porous media. To this end, we conceptualize the considered pore space as a bundle of capillary tubes of different radii saturated by two immiscible fluid phases. We then solve the Navier-Stokes equations within the pore space and define a capillary pressure-saturation relationship, which permits to obtain saturation- and frequency-dependent effective permeability estimates. The application of this method to a realistic model of an unconsolidated granular sediment demonstrates that dynamic effective permeability functions for wetting and non-wetting fluid phases exhibit distinct characteristics, thus rendering effective pore fluid approaches inadequate. Finally, we explore the capability of the seminal dynamic permeability model developed by Johnson et al. [J. Fluid Mech. 176, 379 (1987)] to account for the effects of partial saturation. We find that the frequency scaling proposed by Johnson et al. prevails in partially saturated scenarios. However, the parameters associated with this model need to be redefined to account for saturation-dependent effects.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
HYDROGEOPHYSICS
dc.subject
NUMERICAL MODELLING
dc.subject
PERMEABILITY AND POROSITY
dc.subject.classification
Geoquímica y Geofísica
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Dynamic permeability functions for partially saturated porous media
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-04-23T14:02:24Z
dc.identifier.eissn
1873-0647
dc.journal.volume
221
dc.journal.number
2
dc.journal.pagination
1182-1189
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Oxford
dc.description.fil
Fil: Solazzi, Santiago Gabriel. Universite de Lausanne; Suiza
dc.description.fil
Fil: Rubino, Jorge German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Jougnot, Damien. Sorbonne University; Francia
dc.description.fil
Fil: Holliger, Klaus. Universite de Lausanne; Suiza
dc.journal.title
Geophysical Journal International
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/gji/article/221/2/1182/5722121
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1093/gji/ggaa068
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